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Teaching tools > Galaxies > Overview: Diverse Galaxies
(660KB; Acrobat Reader required)
This Hubble Space Telescope image shows the diversity of galaxies in the universe. A huge elliptical galaxy, designated ESO 325-G004, dominates the image. In addition to many elliptical and spiral galaxies, the image contains a few small irregular galaxies, and red, yellow, and blue foreground stars. The litho includes an inquiry-based classroom activity.
Teachers can use Lithograph: Diverse Galaxies as:
• An example of galaxy types. Use the inquiry-based classroom activity called "In Search of…Galaxy Types" that is included with the PDF lithograph.
• An engagement tool in an inquiry-based lesson. Have students study the image side of the lithograph. Ask them to write down three to five questions they have about the image. When the students are finished, their questions can be used in a variety of ways:
• Ask students to find the answers to their questions by reading the back of the lithograph and/or the related materials listed below.
• Have students exchange papers so that each student has someone else's questions. Then have students find the answers to their partner’s questions by reading the back of the lithograph and/or the related materials listed below.
• Gather the questions into a list by asking students to volunteer to read their questions while you or another student records them on the board or on the overhead projector transparency. Ask students to raise their hands if they had the same or a similar question. Count the number of raised hands and record it next to the question. Once all the questions have been added to the list, ask students to search for the answers to their questions in the text on the back of the lithograph. When they complete that task, ask them to decide if each of their questions was answered completely, answered partially, or not answered at all. Go through the original list and place an "A" in front of the questions that were answered completely, a "P" for those that were partially answered, and an "N" for those that were not answered at all. Determine if the most commonly asked questions also were answered completely. Encourage students to pursue further research to find answers to the unanswered questions.
• A content reading tool. Have students read the lithograph and then write a quiz for the class.
HubbleSite Press release: "Hubble Illuminates Cluster of Diverse Galaxies"
http://hubblesite.org/newscenter/archive/releases/galaxy/2007/08/
See the Galaxies section on "Teaching tools" page.
Teaching tools > Galaxies > Overview: Diverse Galaxies